Solved Radio button groups in two columns

Hi, I have tried to design dialog box layout with two columns, each with RadioGroup inside. So I created nested level 2 groups - and it worked with static text, but when I added RadioGroups to level 2 groups, it never worked. Any idea what is wrong here?

self.GroupBegin(GROUP_ID0, c4d.BFH_SCALEFIT, 2,0)

self.GroupBegin(GROUP_ID1, c4d.BFH_SCALEFIT, 1,0)
#self.AddStaticText(id=1001,flags=c4d.BFH_LEFT,initw=100, name="Left column")
self.AddRadioGroup(RADIO_GROUP1, c4d.BFH_LEFT, 1, 0)
self.AddChild(RADIO_GROUP1, RADIO1_A, 'Option A1')
self.AddChild(RADIO_GROUP1, RADIO1_B, 'Option B1')
self.SetBool(RADIO1_A, True)  # Set first radio button on.

self.GroupBegin(GROUP_ID2, c4d.BFH_SCALEFIT, 1, 0)
#self.AddStaticText(id=1002,flags=c4d.BFH_LEFT,initw=100, name="Right column")
self.AddRadioGroup(RADIO_GROUP2, c4d.BFH_LEFT, 1, 0)
self.AddChild(RADIO_GROUP2, RADIO2_A, 'Option A1')
self.AddChild(RADIO_GROUP2, RADIO2_B, 'Option B2')
self.SetBool(RADIO2_A, True)  # Set first radio button on.




Hi, @stanDM first of all welcome in the plugincafe community.

No worry since it's your first post but please read the next topic in order to set up your next topic correctly.

Finally, regarding your issue, AddRadioGroup will not create a group, so you don't need to close it, so when you are doing

self.GroupBegin(GROUP_ID0, c4d.BFH_SCALEFIT, 2,0)

self.GroupBegin(GROUP_ID1, c4d.BFH_SCALEFIT, 1,0)

So you are closing the GROUP_ID1 and the GROUP_ID0.

I agree since there is the word Group in AddRadioGroup this is rather confusing, I will add a note in the documentation.


Hi Maxime,

thanks a lot for help! I have deleted Group.End for RadioGroup, but I still cannot achieve the desired layout - for one static text field it worked, but not for RadioGroups or RadioGroups nested in Groups. I have tried to change different params but could not make it work.

Enclosed is the image of what I try to achieve. Any idea how to do it is appreciated!


Thanks, Stan

P.S. next time I will make sure my topic is tagged properly :)

sorry to hijack this, but regarding adding tags to posts:
on my macbook pro 13" the taglist is higher than the screen, and you cant scroll it.
it is not possible to select "python" for example
(just for your info)

Hi @stanDM, I apologize for the very late reply I forget your topic.

Regarding your issue, here the code that produces your expected result.

import c4d

class ExampleDialog(c4d.gui.GeDialog):

    def CreateLayout(self):
        # Create the main group of 2 collumns
        if self.GroupBegin(1000, c4d.BFH_FIT | c4d.BFH_LEFT, 2, 1):
            # Create the first Group collum
            if self.GroupBegin(1010, c4d.BFH_SCALEFIT, 1, 0, title="Left column"):
                #self.AddStaticText(id=1011,flags=c4d.BFH_LEFT, name="Left column")
                self.AddRadioGroup(1012, c4d.BFH_LEFT, 1, 0)
                self.AddChild(1012, 0, 'Option A1')
                self.AddChild(1012, 1, 'Option B1')
                self.SetInt32(1012, 0) # Set first radio button on.
            self.GroupEnd() # Close the first collumn group
            # Create the second Group collum
            if self.GroupBegin(1020, c4d.BFH_FIT | c4d.BFH_LEFT, 1, 0, title="Right column"):
                #self.AddStaticText(id=1021,flags=c4d.BFH_LEFT, name="Right column")
                self.AddRadioGroup(1022, c4d.BFH_LEFT, 1, 0)
                self.AddChild(1022, 0, 'Option A1')
                self.AddChild(1022, 1, 'Option B2')
                self.SetInt32(1022, 1) # Set second radio button on.
            self.GroupEnd() # Close the second collumn group

        return True

def main():
    global dlg
    dlg = ExampleDialog()

    # Opens the GeDialog
    dlg.Open(c4d.DLG_TYPE_ASYNC, defaultw=300, defaulth=50)

if __name__ == "__main__":

As a tip, I would recommend using if statement so you clearly see the scope of a Group, nothing official, but it's a guideline I try to follow as it helps a lot to avoid issues like yours with nested groups


Hi Maxime,

it now works great, thank you very much for your support!